Blower.



A. A. THOMMEN.

y BLOWER.

APPLICATION man SEPTJH, 1915.

` 1,242,071 Pmmv 001;. 2,1917.

3 SHEETS-SWEET 1.

A. A. THOMMEN.

BLOWER.

APPLICATION FILED SEPT. II. Isls.

Patented Oct. 2,1917.

3 SHETS-SHEET 2 fwuantoz amm? II fafa/,g

Wmme@ JM A. A. IHoIvIIvIEN.

BLOWER.

APPLICATION FILED SEPT. II. |915.

1,242,071?. v Pat-entedl Oct. l2, 1917.

3 SHEETS-SHEET 3.

ii'iarrn sierras" rar Anoiirii A. riioiviiiiniv,

rvr cierre.

or CHICAGO, ILLINOIS.

BLOWER4 Isaacs?.

To @ZZ whom t may concern: i

Be it known that I, ADOLPH A. THOM- MiiN, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois,have invented new and useful Improvements in Blowers, of which the following is a specication.

This invention relates to improvements in blowers.

In carrying out the present invention it is my purpose to provide a blower which will be constructed in such manner that the air maybe delivered to the rotor through the sidesV thereof at an angle to the path of movement of the rotor and delivered to the discharge blades under pressure and then deliveredy fromv the blower by the discharge blades undera greater pressure. Itis also my purpose to provide a blower which may Abe built on a comparatively small scale and at the same time deliver a relatively large volume of air under a high velocity.

Another. object of my invention is to provide a' blower which willembody comparatively few parts 'and these so arranged and correlated as to reduce the possibility of de- 'rangement to a minimum and operate effi* ciently andeifectively under all conditions.

Vith the above and otherobjects in view, the invention consists in the'construction, combination and arrangement of parts set forth in and falling within the scope of the' appended claim.

In the accompanying drawings v Figure 1 is a view in side elevation of a blower constructed in accordance with my present invention.

Fig. 2 is a vertical transverse sectional l view through the blower.

Fig. 3 is a longitudinal sectional view through the rotor removed from the casably, although form of the invention. Y

view through another angle iron and Specicaton of Letters Patent.

a vertical sectional view through,

y stantially in line lwith y Patented oct. e, isis.

Appl-caton'led September 11, 1915. Serial No. 50,199.

horizontal brace 'rods 2 disposed within the corners ofthe frames. Secured to the lower members of the respective lframes 1-1 ,and projecting upwardly therefrom arel standards 3-3 having the upper extremities thereof terminating short of the centers of the frames and secured to such extremities of the standards -lare ho'rizontally aliiiing bearings 4L respectively, disposed at the centers of the frames. present instance, each standard 3 is reinforced by means of a horizontal bar 5 extending racross the frame and having the extremities thereof secured'- t0 the respective side members of the frame. Secured to the innersurface of the-respective frames 1-1 are side plates 6 and spanning the space between the side plates andl having the opposite edges thereof fastened to such plates is a semi-convoluted wall 7 In theV the upper extremity 'ofv having one end arranged at one side of the frames at a point the bearings 4-4 tremity disposed 'above the vrsty end and spaced apart opening. The plates 6 and the convoluted Vwall 7 constitute av casing and formed in the plates 6 concentrically of thebearings 4-4' aire openings 8; Fastened to the inner side of each plate ing 8 therein is the relativelylarge end of lafrusto-conical shell '9. The inner or small Vends vof these shells '9- are spaced apart from"` each other as clearly illustrated in Fig. 2-

and kthese shells constitute of the drawings,

formed b v the plates 6 inlets tothe casing and the wall'7. y

Journaled in the horizontally alining bearings land arranged centrally of the shells 9 is a shaft 10 and keyedupon the shaft 10 between the bearings /l-i are collars 11 spaced apart a distance corresponding to the space between the inner ends of the shells 9. Suitably secured to the collars 11 and radiating therefrom are discharge blades 12 appropriately spaced apart and each of a width slightly less than the distance between theinner ends of the shells. The outer ends of the discharge blades 12 terminate subof the shells, while formed integral with the therefrom to form a deliveryv 6 concentrically of the openthe inner extremities.

in line with the axes of i and the remaining eX opposite side edges of each discharge blade y 12, or otherwise connected thereto,'are intake blades 13 arranged at obtuse anglesto the discharge blades and projectin upwardly from such blades. The bla kes 13 on each discharge blade 12 are preferably 13 is an inwardly projecting wing' 14E, ter` minating in line with the adjacent side edges of the discharge blades, and flanged upwardly as at 15. rIhe flanges 15 on the inner ends of the wings of the inlet blades at each side of the rotor are disposed contiguous to one another and are secured together by means of a ring 16. lIhese rings 16 are disposed in juxtaposition to the inner eXtrem-ities of the shells {9*9 respectively. The intake blades 13, upon each side of the rotor, project through the relatively small end of the adjacent shell 9 and into such shell. j f v In practice, the shaft 10 is connected up with a suitable source of power so that the shaft and the rotor thereon may be revolved and, in fthe rotation of `the rotor, the air is drawn into the shells 9 and into Contact with the inner sides of the intake blades 13. Owing to the positions of the intake blades relatively to the discharge blades 12, the air is directed onto the discharge blades by the intake blades under pressure and, as the air lis delivered to the discharge blades, the latter redeliver the air to the casing and force the same out through the discharge opening between the y.ends of the convoluted wall 7. It will be noted, that, owing to the shape of thef wall 7, the velocity of the air delivered to the casing from the discharge blades is gradually increased from the lower end of the wall 7 to thedischarge opening of the casing, thereby enabling the air to be discharged from the casing at a relativelyhigh velocity.

In the modified form -of my invention illustrated yin AFig. 5, I have shown the rotor as constructed with intake blades Aupon one side only and, in this formof .the invention,

`the side of the rotor opposite the intake blades is closed by means of a circular disk 17 that projects beyond the outer .ends of the blades and the projecting end of the disk cooperates with the ring 16.

f desired, the disk 17 may be eliminated and the edges of the discharge blades opposite the intake blades are cut inwardly toward the center of the rotor, as illustrated in Fig. 6 of the drawings. Fastened to these inwardly cut edges of the discharge blades is a frusto-conical shell 18 that acts to close the idle side of the rotor. The outer or relatively large end of the shell 18 is preferably formed with anoutwardly projecting circumferential iiange 19 that revolves in juxtaposition to the inner end .off the .adjacent shell .9. In Fig. 7 of the drawings, I have shown two of these single acting rotors connected together. To fasten these single rotors together, the outer extremities ofthe shells 18 are placed end to vend and the flanges 19 thereon are bolted or otherwise connected to `each other. y Y.

If desired, .the intake spaces upon either side of .the rotor may be of greater capacity than the spaces between the discharge blades, or vice versa,'the spaces between Athe discharge blades may have ygreater capacity than the intake spaces. y

While I have herein shown and described certain preferred forms of my invention by way of illustration, I wish it Yto be understood that I do not confine myself to the precise details of construction vherein de'' l scribed and delineated, as modification and variation may ybc made within the scope of the claim and without departi-ngfrom the spirit of the invention.

I claim l y 1 y In a blower, a casing having the sidewalls thereof formedv with roundA openings, a frusto-conical sleeve within each rof said openings and each having its wider yend secured tothe walls of the openings, a shaft journaled in bearings arranged concentric of the openings, a rotor upon the shaft including radially disposed bladesdisposed ibetween .the inner ends ofthe sleeves, a ring member secured to the outer edges of the said central blades, said rotor further in- Copies of this patent may be obtained for tive cents each, by addressing; the Commissioner of Patents, Washington, D. C. 

